See <https://builds.apache.org/job/Mesos/COMPILER=clang,CONFIGURATION=--verbose%20--enable-libevent%20--enable-ssl,ENVIRONMENT=GLOG_v=1%20MESOS_VERBOSE=1,OS=ubuntu%3A14.04,label_exp=(docker%7C%7CHadoop)&&(!ubuntu-us1)/1844/changes>